Standardized Precipitation Index Table

High Plains Climate Division

Texas, Climate Division 01

Precipitation Data Table

Time Scale in Months (As of the end of Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 2.04 3.28 4.1 4.39 6.48 7.12 7.69 8.45 9.68 12.21 14.75 16.33 24.53 28 39.34 46.76 56.69 77.99 98.13 125.29
Accumulated Precipitation Departure from Normal (in.) -0.42 -1.82 -3.52 -4.55 -3.32 -3.28 -3.23 -3.06 -2.61 -1.76 -1.37 -2.23 -1.68 -0.99 2.15 -0.85 0.92 3.63 5.22 13.88
Accumulated Precipitation Percent of Average 83 64 54 49 66 68 70 73 79 87 92 88 94 97 106 98 102 105 106 112
Accumulated Precipitation Percentile (non-exceedance) 43.6 18 6.4 3.3 12.8 14.3 16 18.3 24.1 34.9 39.9 32.4 39.9 45.2 65.4 47.1 56.6 67.3 72.2 92.1
Standardized Precipitation Index -0.16 -0.92 -1.52 -1.84 -1.14 -1.07 -0.99 -0.9 -0.7 -0.39 -0.26 -0.46 -0.26 -0.12 0.4 -0.07 0.17 0.45 0.59 1.41